The attack happened at 2.15am in Mostyn Street, Llandudno, on July 18.

Police said later: "It was a very distressing experience for the gentleman. There have been no arrests but we are following a number of lines of inquiry."

Abdul Khan, a Plaid Cymru councillor in Colwyn Bay and a Muslim, last night appealed for calm. "What has been done in London is by no means the act of a human being and cannot be justified in any religion. But everyone should let the police do their jobs and let the law take its course. I would appeal to everyone to stay calm in this situation because we should not let the terrorists or the racists divide our communities," he said..

"If people resort to retaliation it is no different to those who committed the terrorist crimes."

Mr Khan said North Wales was generally a peaceful and tolerant society. "At a time like this we should all be united and not let terrorism or racism win."

The number of race-related incidents reported in North Wales since the terrorist outrage was 64, compared with 20 in the same period last year, said Mr Wolfendale.

Meanwhile, Dyfed Powys Police said there were 17 racial incidents or offences reported since July 7, compared with nine in the previous month, and 12 during July 2004.

"Dyfed Powys Police are monitoring community tension on a daily basis," a spokeswoman said.

South Wales Police said the number of reported race related incidents increased across the force area since the London bombings.

An anti-racism rally will be held in Cardiff on Saturday, following an attack against the city's Shah Jalal Mosque and Islamic cultural centre.

The mosque received a letter covered with swastikas containing threats to burn down mosques and commit violence against Muslims.

The mosque itself was broken into and animal parts left on the premises.

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